/Engine/Source/Runtime/Slate/Public/Widgets/Text/SMultiLineEditableText.h
Begin a new text search (this is called automatically when the bound search text changes)
void BeginSearch ( const [FText](API\Runtime\Core\Internationalization\FText) & InSearchText, const [ESearchCase::Type](API\Runtime\Core\Misc\ESearchCase__Type) InSearchCase, const bool InReverse )